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DeadEasy is a 3 phase, switchboard mounted, voltage indicator that incorporates functional safety design.  It is used to verify that an electrical isolation switch is open, as part of a lockout procedure.

DeadEasy three phase indicator tests an electrical circuit by sensing the existence or absence of an electric field surrounding the electrical phase conductors.  In essence, DeadEasy is a permanently installed, non-contact, three phase voltage indicator.

DeadEasy Operation Video

DeadEasy Features Video

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DeadEasy Unique Benefits

Positive Indication on Deenergisation

The green LED is illuminated when the circuit is dead / deenergised.  This rules out the question - Did the lamp fail as I turned the switch off or is the led indicating that the power is really off?

Self Test Function

Self Testing is performed automatically on power up, every red to green LED transition and periodically during green LED indication.  This automatic testing is in addition to the manual testing capabilities available while the green LED is illuminated.  Every self test performs a sequence of tests.  Firstly, the master channel generates a test voltage which the slave channel is expecting to measure.  Secondly, the master channel removes the test voltage which the slave channel is expecting to be removed.  Thirdly, the slave channel generates a test voltage which the master channel is expecting to measure.  Fourthly, the slave channel removes the test voltage which the master channel is expecting to be removed.  This 2 second test sequence results in red and green LED flashing.  Using this approach the correct function of the sensing conductors, logic processing unit, output LEDs and all interconnecting wiring is confirmed.  A true self test from a safety rated design!  

Non-contact Sensing

DeadEasy sensing conductors do not electrically connect to the power circuit under test.  The insulated sensing conductors are wrapped around the insulated power conductors during installation.  This approach eradicates the risk of the mains indicator introducing a weak point into your power system.  A weak link than can fail catastrophically during power system voltage surges and elevated switchboard temperatures.  Just ask your self - Why introduce a safety device that potentially introduces a new safety risk?

Digital Output

Active on green LED.  Allows you to log the deenergised event and/or enables field indication of the deenergised equipment, at the equipment.  Now you can match switchboard isolations with field equipment!  

DeadEasy Other Benefits

  • Allows non-electricians to perform a "Test for Dead" / "Zero Voltage Verification" style test on an electrical circuit.
  • Is simple to use.
  • Is an inexpensive alternative to manual testing methods such as Dead Test, Try Start 
  • Is simple to install.  25mm wide DIN rail mount electronics, HMI incorporating power indicator leds and self test request all in one only 22.5mm panel lamp cut-out.
  • Has wide application.  DeadEasy is suitable for new and retrofit installations and dusty, low and high ambient light environments.
  • Is flexible.  DeadEasy, live line indicator allows subsequent verifications without reversal of the isolation ie accommodates late working parties.
  • Replaces traditional three single phase led  / neon mains indicators.
  • Reduces exposure to arc flash / faults.  The energised state of phase conductors is known before panel doors are opened to conduct tests.
  • Is reliable. Hand held, non-contact, voltage indicator leds depend on a user's unreliable connection to earth potential.  DeadEasy's reference to earth is via a permanent wired connection.

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DeadEasy Background

DeadEasy tests an AC circuit to establish whether the circuit is both energised and de-energised ( alive and dead ).  DeadEasy uses Super Bright LEDs so the test result is clear and obvious. DeadEasy provides non-electrical people with a simple and safe zero voltage verification method for MCC / Switchboard based, electrical isolations before conducting mechanical maintenance.  In addition, confirmation of the de-energised state of the ac phase conductors inside a cabinet reduces the need to open the cabinet to test for dead and hence expose personnel to a potential Arc Flash / Fault.  Confirmation of the de-energised state of the circuit inside the cabinet may reduce the level of Arc Flash PPE required to open the cabinet door. 

It is simple and fast to use. No licenses are necessary. Anyone can operate DeadEasy, power indicator light.

DeadEasy's non-contact, testing approach is used extensively in medium and high voltage applications, DeadEasy's focus is low voltage (< 1000V / 1kV AC) systems.  DeadEasy is switchboard / MCC mounted so that one DeadEasy phase indicator is dedicated to one circuit.  It is ideally suited to installation within a motor control centre on controlled circuits.  Specifically, on the short length, circuit conductors between the isolating device ( switch or circuit breaker ) and the controlling device ( contactor, soft starter or variable speed drive ).

If you cannot view the above videos you can download them using the links below (requires Windows Media player 9+):

Download ... DeadEasy Healthy Isolation (1.36MB)

Download ... DeadEasy Faulty Isolation (1.80MB)

If you could not view the videos above, DeadEasy non-contact, three phase indicator is operated as follows:

  1. With the Isolator on / closed / 1 the red LED only should be illuminated - Confirms that all 3 phases are energised

  2. With the Isolator off / opened / 0 the green LED only should be illuminated following the 2 second red / green flash, self test sequence - Confirms that all 3 phases are de-energised

  3. With the Isolator off / opened / 0 and self test activated, red and green LED flashing occurs for 2 seconds during self testing - Confirms that 3 phase voltage sensing is operational and therefore validates the de-energised result.

DeadEasy Flyer

DeadEasy Data Sheet

DeadEasy Operating & Maintenance Manual

DeadEasy Installation Drawing

DeadEasy Product Bulletins